Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
No matter how cold it gets, gasoline will not freeze.
107
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
German chemists made a replica of a trophy the size of one molecule.
68
Pumice is the only rock that floats on water.
14
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Nearly 50% of the world's scientists are assigned to military projects.
71